Richard Arnold put together a concise piece to address a lot of questions and concerns coming out of the WannaCrypt crisis. He outlines a little history and context for what exactly is ransomware. He then takes a storage centric approach to outlining basic IT policies that would help mitigate future disruptions.
The piece is a great summation. It doesn’t have the audacity to say the attack was preventable, but rather that best practices could serve to limit future disruptions. It’s an interesting read to wrap your head around a global issue.